#-*- coding: utf-8 -*-
#

def fatorial(n):
	if n <= 0:
		return 1
	else:
		return n * fatorial(n-1)
		
def fatorial_cauda(n):
	def fact(i=n , acc =1):
		if i ==0:
			return acc
		else:
				return fact(i-1, (acc* i))
	return fact()
fatorial_cauda(5)
